一种储液器

Abstract

本实用新型涉及一种储液器，包括壳体和排气管组件，排气管组件包括排气管、第一支管和第二支管，排气管一端伸入所述壳体内，另一端位于壳体外且连接第一支管和第二支管，排气管远离壳体的一端具有分管连接部，分管连接部包括两个凹陷部和两个弧形部，沿分管连接部的周向，凹陷部和弧形部间隔设置，定义：第一支管和第二支管与分管连接部焊接的管段为配合段，第一支管配合段的外径为d1，第二支管配合段的外径为d2，分管连接部内壁的最大间距为L1，沿分管连接部的径向，两个凹陷部相对设置且具有间距h，其中：L1‑(d1+d2) / 2＞h。本申请通过优化分管连接部结构设计与尺寸约束关系，解决了传统双管储液器焊接间隙难以精确控制的技术难题。

Claims

1. A reservoir characterized by, include: The housing (1) and the exhaust pipe assembly (2) include an exhaust pipe (21), a first branch pipe (22), and a second branch pipe (23). One end of the exhaust pipe (21) extends into the housing (1), and the other end is located outside the housing (1) and connects the first branch pipe (22) and the second branch pipe (23). The end of the exhaust pipe (21) away from the housing (1) has a branch pipe connection part (3). The branch pipe connection part (3) has a first connection port (31) and a second connection port (32). The branch pipe connection part includes two recessed parts (33) and two arc-shaped parts (34). Along the circumference of the branch pipe connection part, the recessed parts (33) and the arc-shaped parts (34) are spaced apart. The two arc-shaped parts (34) constitute the first connection port (31). At least part of the wall of the first branch pipe (22) and the second connection port (32), the ends of the first branch pipe (22) and the second branch pipe (23) respectively extend into the first connection port (31) and the second connection port (32), the first branch pipe (22), the second branch pipe (23) and the branch pipe connection part (3) are welded and fixed. Define: the pipe section of the first branch pipe (22) and the second branch pipe (23) welded to the branch pipe connection part (3) is the mating section. The outer diameter of the mating section of the first branch pipe (22) is d1, the outer diameter of the mating section of the second branch pipe (23) is d2, the maximum distance between the inner walls of the branch pipe connection part (3) is L1, and along the radial direction of the branch pipe connection part (3), the two recesses (33) are arranged opposite each other and have a distance h, where: L1-(d1 + d2) / 2>h.

2. The reservoir of claim 1, wherein, The outer diameter d1 of the first branch pipe (22) mating section, the outer diameter d2 of the second branch pipe (23) mating section, the maximum distance between the inner walls of the branch pipe connection part (3) and the distance h between the two recesses (33) satisfy L1-(d1 + d2) / 2≥1.5mm, 0.5mm≤h≤2mm.

3. The reservoir of claim 2, wherein, The exhaust pipe (21) is a split structure, including a main pipe section (211) and a distribution pipe (212). The main pipe section (211) extends into the housing (1), and the distribution pipe (212) is a single piece. The outer diameter of the maximum outer diameter section of the distribution pipe (212) is d3, where: 1.3d3≤d1+d2.

4. The reservoir of claim 3, wherein, The distribution pipe (212) also has a flow-retarding section (2121) and a flow-diverting section (2122). The diameter of the flow-retarding section (2121) increases along the direction of the first branch pipe (22) and the second branch pipe (23). The length of the flow-retarding section (2121) along the direction of the exhaust pipe (21) is defined as L2, and the length of the flow-diverting section (2122) along the direction of the exhaust pipe (21) is defined as L. 3， Where: 2L2≥L3.

5. The liquid reservoir according to claim 4, characterized in that, The reservoir also includes an air inlet pipe (4) and a filter screen (5). The housing (1) is integrally spun and formed. The housing (1) includes a first constriction portion (11) and a second constriction portion (12). The air inlet pipe (4) is inserted into the first constriction portion (11). The exhaust pipe assembly (2) is welded to the second constriction portion (12). The filter screen (5) is fixed by welding to the periphery of the air inlet end of the exhaust pipe (21) extending into the housing (1). At least one oil return hole (6) is provided on the main pipe section (211) of the exhaust pipe (21). The first branch pipe (22) and / or the second branch pipe (23) are provided with positioning protrusions (24). The positioning protrusions (24) and the bottom end face of the distribution pipe (212) are located in the same horizontal plane.

6. The reservoir of claim 5, wherein, The main pipe section (211) has a flared section at one end near the second constriction portion. The flared section is connected to the second constriction portion (12), and the outer wall surface of the flared section is tightly fitted with the inner wall surface of the second constriction portion (12). The vertical distance between the bottom end face of the flared section and the air inlet end of the main pipe section (211) is less than the vertical distance between the bottom end face of the second constriction portion (12) and the air inlet end of the main pipe section (211).

7. The reservoir of claim 6, wherein, The outer wall surface of the end of the main pipe section (211) and the inner wall surface of the second constriction section (12) form a first tight fit, and the outer wall surface of the end of the distribution pipe (212) and the inner wall surface of the main pipe section (211) form a second tight fit. The main pipe section (211), the second constriction section (12) and the distribution pipe (212) are nested together to form a pre-assembled body. The pre-assembled body is welded simultaneously at the first tight fit and the second tight fit through a welding process, so that the main pipe section (211), the second constriction section (12) and the distribution pipe (212) form an integrated welded structure.

8. The reservoir of claim 2, wherein, The exhaust pipe (21) is a split structure, including a main pipe section (211) and a distribution pipe (212). The main pipe section (211) extends into the housing (1). The length of the main pipe section (211) inside the housing (1) is L4. When L4 ≥ 30mm, the exhaust pipe (21) is either an integral structure or a split structure. When 4mm ≤ L4 ≤ 30mm, the exhaust pipe (21) is an integral structure.

9. The reservoir of any of claims 1-8, wherein, The outlet ends of the first branch pipe (22) and the second branch pipe (23) have a first straight segment and a second straight segment, respectively. The outlet ends of the first branch pipe (22) and the second branch pipe (23) are bent to the same side, and the extension directions of the first straight segment and the second straight segment are perpendicular to the axial direction of the housing (1).

Images